Feedeeick siemens



(No Model.) 2 Sheets-Sheet; 1.

F. SIEMENS.

GAS BURNER. No. 323,537. Patented Aug. 4, 1885.

(No Modelf') l' I 2 Sheets-Sheet 2t I SIEMENS. y

GAS BURNER. N0. 323,537'. Patented Allg. 4,1885.

N. PETERS. PnuwLitmgnphnr, wnhingten. D. C.

NiTEn STATES PATENT @Erica FREDERICK SIEMENS, OF DRESDEN, SAXONY, GERMANY.

GAS-BURNER.

SPECIFICATION forming` part o1' Letters Patent No. 323,537, dated August 4, 1885.

Application filed February 8, 1834. (No model.) Patented in Germany May 31, 1581, Xo. 17,342; in England June 17, 1881, No. 2,638; in France June '21, 15:81, No. 131,203; in Belgium July l1, 1881, No. 55,086, and in Austria-Hungary, September 10x 1881,

No. 18.053 and No. 32,908.

To. @ZZ whom t may concern.:

Be it known that l, FREDERICK SIEMENS, a citizen of Saxony, residing at Dresden, in the Empire of Germany, have invented certain new and useful Improvements in Lamps, of which the following is a specification.

My invention relates to that class of lamps or burners wherein the heat of the products of combustion is imparted to the air or gas supply for the flame.

In the specication forming a part of Letters Patent of the United States, No. 241,077, dated May 3, 1881, granted to me, a lamp was described which was constructed as follows: An annularburner, consisting of a number of small vertical tubes arranged in circular form and rising from an annular chamber, had its cent-ral space formed into aregenerative chamber containing material offering extended surfaces for taking up heat, which chamber communicated at its bottom with a passage leading to the chimney or cylindrical tube, arranged in a line which was a prolongation of the axis of thecentral regenerative chamber. Thelatter served for the passage of the products of combustion which were drawn over its circular upper edge from the annularame bythe draft oi' the chimney. Entirely surrounding the outside of the burner was an annular chamber which had a circular opening at its lower end, and contained material offering extended surfaces, which became heated by conduction from the heat gir en offto the central chamberand iinpartcd such lieatto the air passing upward on its way to the flame ofthe burner. As the flame of the burner was drawn from all direc tions inward directly over the circular edge of the cylindrical chamber, it was necessary to carry this up to such a height as to afford the desired length ot' tlame. For this purpose a separate cylinder ot' tire-clay or other suitable refractory material was fitted to the upper end of the regenerative chamber.

According to my present invention a Hat or ribbed vertical plate, of a width corresponding to the width of burner required, has formed upon it at or about the middle of its height a horizontal closed channel or small chainber, into which Athe illuminatinggas is led by a pipe, and from which it issues through a number of small vertical tubes arranged in a row, and which constitute the burner of the lamp. 0n one side of the before-mentioned plate is formed a flat vertical passage, within which are situated the said gas channel and tubes, and which extends at its upper end to near the top of the tubes, where it is open, and has its outer side provided with a notched defiecting-iiange by which the air-supply passing up through the open lower end to the burner is dedected toward the dame and divided iuto a number of separate jets; or the notches may be dispensed with and the delecting-fiange may be provided with a smooth or straight edge. The said air-supply passage is extended downward some distance below the lower ends of the gas-tubes. On the other side of the first-mentioned flat plate carrying the gas-burner is formed another dat passage extending downward like the air-pas sage, but which according to one arrangement is closed at bottom, while at the upper part it is divided by a longitudinal partition into two passages, of which the one next the burner is made to open at some height above the burner, while the other or back passage communicates at its upper end with a flue-pipe. That part of the plate carrying the burner, which extends from the tops of the gastnbes to the opening of the inner passage, is formed ot a separate piece of porcelain or other suitable refractory and light-reliecting material, and it has by preference formed ou ils face next the burner one or more notched ribs, which deflect the air rising fromthe air-pas age on the inner side of the gastubes against the inner side of the tlame, and which also offer additional surface for taking up beat from the dame.

ln the accompanying drawings, in which corresponding parts are designated by similar let-ters, Figure l shows a vertical transverse section of the lamp on the line. a b of Fig. 2. Fig. 2 is a longitudinal section on the line c d of Fig. l. e f of Fio. 1. Fig. t is a horizontal section on the line g 7i of Fig. 5. Fig. 5 illustrates in Vert-ical section a lamp iu which the linepipe is arranged horizontally.

A is a small chamber into which the illu ini- Fig. 3 is a cross-section on the line 9 IOO Daling-gas is introduced through the pipe A', and from which it issuesA through a row of small tubes, G. The chamber A is formed in the flat side B of a passage, F, which constitutes the air-heating chamber or regenerator of the lamp. Behind the said side of this passage is formed the passage D, communicating at bottom with the iiue-pipe I, and having at top an opening situated above a plate, I?, of porcelain or othersuitable refractory material, placed on top of the side B. This plate has two rows of notched projections, K K', and a third row of projections, K2, is formed on the upper edge of the outer side of the air-passage F `just below the tops of the gas-tubes C. By means of these projections the air current passing up through F on each side of the gastubes is divided into a number of separate streams and deflected against the flame. Against the outer side of the passage F is by preference formed a second narrow air-pas sage, II, through which a current of air passes, takes the heat which would otherwise be lost by radiation from the casing of the passage F, and in impinging against the outer surface of the flame serves to steady it.

The action of the lamp is as follows: Gas being admitted into A and ignited at the tubes U, the flame and gaseous products therefrom in passing upward against the surface of the porcelain plate I impart heat to the flue-pipe I, thereby inducing an upward current of air therein,which will cause the ila-me and gaseous products to be drawn over the edge of the plate I into the passage D, in which they will descend in order to escape up the line-pipe I. The heat thus imparted to the sides of the passages is transmitted by conduction to the air-passage F, thereby heating the air and gas supply to a considerable degree before entering into combustion. By extending the airpassage downward to some extent, as shown, a column of hot air will be contained therein, which will induce an upward current of sutlicient force to enable the ilame to burn steadily without a chimney-glass. It is of great importance for this purpose that the column of Aair in F should be sufficient to produce the requisite current for the ilame independently of the chimney-d raft. By the passagesF and H highlyheated air is fed with considerable impulse against the iiame, while the heated gas issues with comparatively low velocity from the tubes C, so that the action obtained is just the reverse of that of ordinary flat gas-burners, in which the steadiness of the flame is obtained by causing the gas to issue with high velocity into a comparatively quiescent surrounding atmosphere. The porcelain plate I? also serves as a reiiector,so that these flat burners are particularly adapted for throwing the light in one particular direction-such as is required for wall-lights, shop-windows, theaters, picture-galleries, and the like.

As the burner may be constructedwith a row of gas-tubes, C, of any desired length,

either arranged in a straight line-Orrin any desired curve, various novel effects in illumination may be produced by means of these lamps, such as are not possible with circular burners.

Having thus described the nature of my invention and in what manner the same is to be performed, I claiml. The vcombination of a straight row of gas-tubes, with'a vregenerator or passage for heating the air-supply to the flame on one side of a straight or curved division-wall, and a regenerator-or passage for taking up heat from the products of combustion on the other side of the said wall, the upper part of which Wall extends to a height above the gas-tubes corresponding to the height of the flame, and is formed of porcelain or other refractory material having an aperture for the downward passage of the products of combustion, as and for thepurposes described.

2. In a regenerator-lamp, the combination, with the burner, of a plate of porcelain or other refractory and light-reflecting material having one or more rows of notched projections, as and for the purposes described.

3. In a regenerative-lamp, the combination of a plate of porcelain or other refractory and light-reflecting material having one or more rows of notched projections at a certain height above t-he gas-tubes, with an air-deilecting flange on the other side of the gas-tubes at or above the level of the tops thereof, as and for the purposes described.

4. The combination of a series or group of flat regenerative burners with a flue-pipe common to all, as and for the purposes described.

5. In a lamp or burner in which the incoming air and gas and outgoing` products of combustion flow in relatively opposite directions, the combination of a number of gasorices with a plate of porcelain or other suitable refractory material extending above the orifices and having an opening through which the products of combustion flow on their way to the flue-pipe, as and for the purposes described.

6. The combination of the inner passage, through which the products of f combustion pass from the llame, the chamber surrounding the burner, through which the air passes, aud the plate of porcelain or other refractory material located above and behind the burner.

7. The combination of the inner passage, through which the products of combustion pass from the ilame, the air-passage surrounding the burner, and an exterior air-passage, which takes vup the heat radiated from the easing ofthe air surrounding the burner, as and for the purposes described.

8. The combination of the inner passage, into and through which the products of combustion pass from the burner, with an adjacent gas passage communicating with the burner-tubes,whereby the heat of the outtlow- IOO IIO

ing products of combustion is communicated to the inlowing-gas, as and for the purposes described.

9. The combination of the passages into which the products of combustion are drawn over the plate of porcelain above the burnertuhes and the adjacent Hue-pipe communieating with the bottom of the saidpassage, as and for the purposes described.

l0. The tlat or ribbed vertical plate B, on the top of which is the plate P, in combination with the passages F and D, as and for the purposes described.

ll. The flat or ribbed vertical plate B, having formed upon it a channel into which the illuminating-gas is led and 'from which it issues through a number of vertical tubes, in combination with plate P, of porcelain or other refractory material.

12. The combination of the partition-plate 2o 

